My WII says "SYSTEM FILES CORRUPTED PLEASE REFER TO WII OWNERS MANUAL". I had homebrew with wiiflow and usb loader GX, I usually run Wiiflow thru homebrewt but my son likes USB Loader GX, he said he was play a game and went to power it off and the screen pops after loading and pressing A. I was advised to delete homebrew and USB channel, and update and all should be well. I did update went pretty fast. still on V4.2U when i take my SD card out it wont load. put my SD card back in and it will run ok, (stock disc) before i did something else maybe wrong since updating and and deleting didnt work i thought i would come here, everyone here always seems like they know what they are talking about. I would like to say thank you in advance for any help.